AC Milan boss Pippo Inzaghi was left frustrated after their 1-1 draw with Inter Milan.
A magnificent Jeremy Menez volley was wiped out by Joel Obi.
"It's disappointing to be in the lead, have some clear chances and not win. However, my team gave everything it had and it was a balanced game where Inter did well too," he told Sky Sport Italia.
Stephan El Shaarawy had the best opportunity to secure victory, but smashed the bar when clear on goal.
"It's a shame for him, as it would've been the ultimate for him to decide a derby. That's his kind of move, but these things happen - I know I've missed them!
"Unfortunately Inter were pushing without making much impact, but they scored on our mistake. We know that we have to grow, but I believe the spirit, hunger and indeed some of our moves were very good."
He added: "Clearly there was a sense of disappointment in the locker room, as the lads wanted all three points. I knew Inter would push hard and we wanted to go for the second goal, but the idea was to stay compact and go on the counter.
"At the moment when I thought Inter had run out of steam, we conceded this rather fortuitous goal. It could've knocked the wind out of our sails, but instead we created another two incredible scoring opportunities."
